package single;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @Author longhj
 * @Description 静态类使⽤
 * @Date 2021/09/04 星期六 12:16
 */
public class StaticSingleton {
    public static Map<String, String> map = new ConcurrentHashMap<>();

}
